stylus option nib for enable extension, compress for uglify
for use nib in .styl needs import

@import 'nib'

copy useful for frameworks which had self compile,
for example express use jade as template engine
or already css, js, fonts...

for disable static or livereload use false value

...

static: false,

livereload: false

...

livereoad - support css, js, html (inspired by livejs.com)
works in watch mode only, by auto inject 2 script into static html
for manual include scripts with src//{livereload-host}:{livereload-port}/socket.io/socket.io.js and//{livereload-host}:{livereload-port}/socket.io/jastyco/livereload.js
where livereload-host, livereload-port taken from config